The twin-engine, Martin B-26 Marauder, medium bomber was first used in the Pacific in early 1942.
After entering service with the U.S. Army, the aircraft became known as a "Widowmaker" due to the early models' high rate of accidents during takeoff and landings. The aircraft improved after crews were re-trained, the wing span was increased and a larger fin and rudder were installed. The aircraft would later distinguish itself with the lowest loss rate of any USAAF bomber.